Orange color under videopicture

[Adriano10]

Hello, I have a problem with BSplayer.

I use BSplayer very long time and I like it and never had this problem.
It appeared lately, when I play a videofile of any format (avi or wmv) I can see orange color under the videopicture, especially when I move the videowindow. Besides that, when I play a movie, OSD messages have orange shades, but I set OSD in white color.

The orange color appears in Internal renderer overlay (default), but when I changed to Internal Renderer RGB mode, the orange color disappeared.
I always used Internal renderer overlay (default) and never had this problem before, don't know what could change?

I use K-lite codec pack Standard and everything was OK.

Help me please!!!